diff options
Diffstat (limited to 'libgo/go/exec/lp_unix.go')
-rw-r--r-- | libgo/go/exec/lp_unix.go | 55 |
1 files changed, 0 insertions, 55 deletions
diff --git a/libgo/go/exec/lp_unix.go b/libgo/go/exec/lp_unix.go deleted file mode 100644 index d234641..0000000 --- a/libgo/go/exec/lp_unix.go +++ /dev/null @@ -1,55 +0,0 @@ -// Copyright 2010 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// +build darwin freebsd linux openbsd - -package exec - -import ( - "errors" - "os" - "strings" -) - -// ErrNotFound is the error resulting if a path search failed to find an executable file. -var ErrNotFound = errors.New("executable file not found in $PATH") - -func findExecutable(file string) error { - d, err := os.Stat(file) - if err != nil { - return err - } - if d.IsRegular() && d.Permission()&0111 != 0 { - return nil - } - return os.EPERM -} - -// LookPath searches for an executable binary named file -// in the directories named by the PATH environment variable. -// If file contains a slash, it is tried directly and the PATH is not consulted. -func LookPath(file string) (string, error) { - // NOTE(rsc): I wish we could use the Plan 9 behavior here - // (only bypass the path if file begins with / or ./ or ../) - // but that would not match all the Unix shells. - - if strings.Contains(file, "/") { - err := findExecutable(file) - if err == nil { - return file, nil - } - return "", &Error{file, err} - } - pathenv := os.Getenv("PATH") - for _, dir := range strings.Split(pathenv, ":") { - if dir == "" { - // Unix shell semantics: path element "" means "." - dir = "." - } - if err := findExecutable(dir + "/" + file); err == nil { - return dir + "/" + file, nil - } - } - return "", &Error{file, ErrNotFound} -} |